Modification of structured bio‑carbon derived from spongin-based scaffolds with nickel compounds to produce a functional catalyst for reduction and oxidation reactions: Potential for use in environmental protection

Sonia Żółtowska; Zuzanna Bielan; Joanna Zembrzuska; Katarzyna Siwińska-Ciesielczyk; Adam Piasecki; Anna Zielińska-Jurek; Teofil Jesionowski

doi:10.1016/j.scitotenv.2021.148692

Modification of structured bio‑carbon derived from spongin-based scaffolds with nickel compounds to produce a functional catalyst for reduction and oxidation reactions: Potential for use in environmental protection

Abstract

Three different 3D fibrous-like NiO/Ni(OH)2/Ni‑carbonized spongin-based materials were prepared via a simple sorption–reduction method. Depending on the support used, the catalysts were composed of carbon, nickel oxide, nickel hydroxide and zero-valent nickel, with the surface content of the nickel-containing phase in the range 15.2–26.0 wt%. Catalytic studies showed promising activity in the oxidation of phenolic compounds in water and in the reduction of 4-nitrophenol. The oxidation efficiency depends on the substrate used and ranges from 80% for phenol at pH 2 to 99% for 4-chlorophenoxyacetic acid (4-CPA) and methylchlorophenoxypropionic acid (MCPP). In the reduction reaction, all catalysts exhibited superior activity, with rate constants in the range 0.648–1.022 min-1. The work also includes a detailed investigation of reusability and kinetic studies.

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Authors (7)

Sonia Żółtowska
Zuzanna Bielan
Joanna Zembrzuska
Katarzyna Siwińska-Ciesielczyk dr hab. inż.
Adam Piasecki
Anna Zielińska-Jurek prof. dr hab. inż.
Teofil Jesionowski

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Category:: Articles
Type:: artykuły w czasopismach
Published in:: SCIENCE OF THE TOTAL ENVIRONMENT no. 794,
ISSN: 0048-9697
Language:: English
Publication year:: 2021
Bibliographic description:: Żółtowska S., Bielan Z., Zembrzuska J., Siwińska-Ciesielczyk K., Piasecki A., Zielińska-Jurek A., Jesionowski T.: Modification of structured bio‑carbon derived from spongin-based scaffolds with nickel compounds to produce a functional catalyst for reduction and oxidation reactions: Potential for use in environmental protection// SCIENCE OF THE TOTAL ENVIRONMENT -Vol. 794, (2021), s.148692-
DOI:: Digital Object Identifier (open in new tab) 10.1016/j.scitotenv.2021.148692
Verified by:: Gdańsk University of Technology